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• ResolveRegion.kt

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commonMain.aws.sdk.kotlin.runtime.region.ResolveRegion.kt Maven / Gradle / Ivy

/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */

package aws.sdk.kotlin.runtime.region

import aws.sdk.kotlin.runtime.ConfigurationException
import aws.sdk.kotlin.runtime.InternalSdkApi
import aws.sdk.kotlin.runtime.config.profile.AwsProfile
import aws.sdk.kotlin.runtime.config.profile.loadAwsSharedConfig
import aws.smithy.kotlin.runtime.io.use
import aws.smithy.kotlin.runtime.util.LazyAsyncValue
import aws.smithy.kotlin.runtime.util.PlatformProvider
import aws.smithy.kotlin.runtime.util.asyncLazy

/**
 * Attempt to resolve the region to make requests to, throws [ConfigurationException] if region could not be
 * resolved.
 */
@InternalSdkApi
public suspend fun resolveRegion(
    platformProvider: PlatformProvider = PlatformProvider.System,
    profile: LazyAsyncValue = asyncLazy { loadAwsSharedConfig(platformProvider).activeProfile },
): String =
    DefaultRegionProviderChain(platformProvider, profile = profile).use { providerChain ->
        providerChain.getRegion() ?: throw ConfigurationException("unable to auto detect AWS region, tried: $providerChain")
    }